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4378
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1 /* getopt_long and getopt_long_only entry points for GNU getopt. |
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2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97 Free Software Foundation, Inc. |
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3 |
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4 This file is part of the GNU C Library. Its master source is NOT part of |
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5 the C library, however. The master source lives in /gd/gnu/lib. |
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6 |
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7 The GNU C Library is free software; you can redistribute it and/or |
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8 modify it under the terms of the GNU Library General Public License as |
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9 published by the Free Software Foundation; either version 2 of the |
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10 License, or (at your option) any later version. |
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11 |
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12 The GNU C Library is distributed in the hope that it will be useful, |
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 Library General Public License for more details. |
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16 |
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17 You should have received a copy of the GNU Library General Public |
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18 License along with the GNU C Library; see the file COPYING.LIB. If not, |
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19 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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20 Boston, MA 02111-1307, USA. */ |
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21 |
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22 #ifdef HAVE_CONFIG_H |
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23 #include <config.h> |
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24 #endif |
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25 |
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26 #include "getopt.h" |
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27 |
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28 #if !defined (__STDC__) || !__STDC__ |
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29 /* This is a separate conditional since some stdc systems |
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30 reject `defined (const)'. */ |
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31 #ifndef const |
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32 #define const |
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33 #endif |
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34 #endif |
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35 |
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36 #include <stdio.h> |
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37 |
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38 /* Comment out all this code if we are using the GNU C Library, and are not |
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39 actually compiling the library itself. This code is part of the GNU C |
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40 Library, but also included in many other GNU distributions. Compiling |
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41 and linking in this code is a waste when using the GNU C library |
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42 (especially if it is a shared library). Rather than having every GNU |
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43 program understand `configure --with-gnu-libc' and omit the object files, |
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44 it is simpler to just do this in the source for each such file. */ |
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45 |
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46 #define GETOPT_INTERFACE_VERSION 2 |
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47 #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2 |
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48 #include <gnu-versions.h> |
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49 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION |
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50 #define ELIDE_CODE |
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51 #endif |
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52 #endif |
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53 |
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54 #ifndef ELIDE_CODE |
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55 |
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56 |
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57 /* This needs to come after some library #include |
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58 to get __GNU_LIBRARY__ defined. */ |
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59 #ifdef __GNU_LIBRARY__ |
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60 #include <stdlib.h> |
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61 #endif |
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62 |
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63 #ifndef NULL |
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64 #define NULL 0 |
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65 #endif |
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66 |
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67 int |
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68 getopt_long (argc, argv, options, long_options, opt_index) |
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69 int argc; |
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70 char *const *argv; |
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71 const char *options; |
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72 const struct option *long_options; |
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73 int *opt_index; |
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74 { |
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75 return _getopt_internal (argc, argv, options, long_options, opt_index, 0); |
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76 } |
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77 |
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78 /* Like getopt_long, but '-' as well as '--' can indicate a long option. |
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79 If an option that starts with '-' (not '--') doesn't match a long option, |
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80 but does match a short option, it is parsed as a short option |
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81 instead. */ |
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82 |
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83 int |
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84 getopt_long_only (argc, argv, options, long_options, opt_index) |
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85 int argc; |
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86 char *const *argv; |
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87 const char *options; |
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88 const struct option *long_options; |
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89 int *opt_index; |
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90 { |
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91 return _getopt_internal (argc, argv, options, long_options, opt_index, 1); |
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92 } |
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93 |
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94 |
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95 #endif /* Not ELIDE_CODE. */ |
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96 |
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97 #ifdef TEST |
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98 |
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99 #include <stdio.h> |
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100 |
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101 int |
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102 main (argc, argv) |
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103 int argc; |
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104 char **argv; |
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105 { |
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106 int c; |
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107 int digit_optind = 0; |
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108 |
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109 while (1) |
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110 { |
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111 int this_option_optind = optind ? optind : 1; |
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112 int option_index = 0; |
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113 static struct option long_options[] = |
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114 { |
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115 {"add", 1, 0, 0}, |
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116 {"append", 0, 0, 0}, |
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117 {"delete", 1, 0, 0}, |
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118 {"verbose", 0, 0, 0}, |
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119 {"create", 0, 0, 0}, |
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120 {"file", 1, 0, 0}, |
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121 {0, 0, 0, 0} |
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122 }; |
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123 |
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124 c = getopt_long (argc, argv, "abc:d:0123456789", |
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125 long_options, &option_index); |
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126 if (c == -1) |
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127 break; |
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128 |
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129 switch (c) |
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130 { |
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131 case 0: |
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132 printf ("option %s", long_options[option_index].name); |
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133 if (optarg) |
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134 printf (" with arg %s", optarg); |
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135 printf ("\n"); |
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136 break; |
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137 |
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138 case '0': |
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139 case '1': |
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140 case '2': |
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141 case '3': |
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142 case '4': |
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143 case '5': |
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144 case '6': |
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145 case '7': |
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146 case '8': |
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147 case '9': |
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148 if (digit_optind != 0 && digit_optind != this_option_optind) |
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149 printf ("digits occur in two different argv-elements.\n"); |
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150 digit_optind = this_option_optind; |
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151 printf ("option %c\n", c); |
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152 break; |
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153 |
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154 case 'a': |
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155 printf ("option a\n"); |
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156 break; |
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157 |
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158 case 'b': |
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159 printf ("option b\n"); |
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160 break; |
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161 |
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162 case 'c': |
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163 printf ("option c with value `%s'\n", optarg); |
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164 break; |
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165 |
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166 case 'd': |
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167 printf ("option d with value `%s'\n", optarg); |
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168 break; |
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169 |
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170 case '?': |
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171 break; |
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172 |
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173 default: |
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174 printf ("?? getopt returned character code 0%o ??\n", c); |
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175 } |
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176 } |
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177 |
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178 if (optind < argc) |
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179 { |
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180 printf ("non-option ARGV-elements: "); |
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181 while (optind < argc) |
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182 printf ("%s ", argv[optind++]); |
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183 printf ("\n"); |
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184 } |
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185 |
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186 exit (0); |
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187 } |
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188 |
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189 #endif /* TEST */ |
